X follows theh poisson distribution and P(X=1) = P(X=2), find P(x = 4).

X follows the poisson distribution and P(X=1)=P(X=2) , find P(X=4).

The mean of the following frequency distribution is 53,find the value of p.

For a inomial distribution mean is 3 and variance is 2. Find the values of n and p.

If A and B are two events not mutally exclusive and P(A) = 1/4, P(B) = 2/5, P(AuuB) = 1/2 Find P(A/B)

Find the domain of the following functions given by f(x)=(x^2+2x+1)/(x^2-4) .

For what value of p, the following system of linear equation has no solution. px+3y=p-2, 12x+py=p

If the points (p, q) and (q, p) are equidistant from the point (x, y). show that x = y.

If A and B are two events in a random experiment such that P (A) = 1/4, P(B) = 1/2, P(A nn B) = 1/8, find P ('not A' and 'not B').

A and B are two events sch that P(A) = 1/3 P(B) = 1/4, P(AuuB) = 1/2 . Find P(B/A).